Steel-wool buffer



Patented July 19, 1927.

UNITED STATES,

PATENT OFFICE. l

WILLIAM I-I. ROBBINS, OF SPRINGFIELD, OHIO, ASSIGNOR TO THE WILLIAMSCOM-a,

PANY, 0F LONDON, OI-IIO, A CORPORATION OF OHIO.

STEEL-WOOL BUFFER.

Application filed March 25, 1926. Serial No. 97,429.

My invention relates to' steel wool buffers.

It the object of my invention to provide a steel wool buiier and a meansof supporting it so that the end thereof may be applled for buingpurposes, and as the end is worn oil the butter may be advanced beyondits support for additional buii'lng Work.

Referring to the drawings:

Figure l is a side elevation of a bufiing motor with the buffer mountedon an arma-- ture shaft;

Figure 2 is a section of the buffer on the line 2-2 of Figure l;

.Figure 3 is a section on the line 3-3 of Figure 2;

Figure 4 is a perspective of the butter in the process of winding,showing the method of stitching.

Figure 5 is a' perspective of the buffer blanket.

Referring to the drawings, 1 designates an electric motor adapted to besupported by a handle 2, or any other form of suitable support. Thearmature shaft of this motor is designated 3. The outer end of the shaftis provided with a thread 4, upon which is mounted a lock nut 5 and abuifer supporting plate 6. This plate 6 has an overturned clamping edge7 The threaded end of the armature shaft is adapted to project within anaperture 8 inside of the buffer to serve to support the bufer.

The butter itself is composed of one or more layers of steel wool 9,which are embraced on either side by layers of fabric, paper or thelike, designated 10, which are adapted to hold the wool in position butare also capable of being worn away with the wool.

These alternate layers of wool and intervening pieces of retainingmaterial are stitched together by diagonal or V-shaped lines ofstitching 11. Vhen the blanket has been thus formed, it is Wound upon asupporting mandrel as in Figure 4, and as it is wound each completewinding of the roll is stitched to the next succeedingportion or windingof the roll or several windings of the roll are stitched together at onetime in any suitable manner, so thatthe complete roll-is thus tiedtogether to preventf it from unwinding. In Figure 4 such stitching isdesignated 12.

The material constituting the layers 10 should be of sufficient strengthto retain the stitches. lV hen it lis desired to place the roll againstthe plate 6, it is compressed so that it will pass beneath the flange -7and then allowed to expand. Any desired form of clamp, in a large roll,or use of the hands, in the case of a small roll, will be sufficient forthis purpose.

It will be observed that as the end 13 of the buffer is ground away itmay be advanced by rotating the support 6 and thus locking it inposition by the lock nut 5.

It will be understood that I desire to com prehend within my inventionsuch modifications as may be necessary to adapt it to varying conditionsof use falling within the scope of the appended claims.

Having thus fully described my invention what I claim as new and desireto secure by Letters Patent, is:

1. In a buffer, a layer of steel wool, a layer of retaining material,stitching adapted to retain said wool and material to one another saidlayers being wound into a roll, and means to prevent said roll fromunwinding.

2. In a buffer, a layer of steel wool, a layer of vretaining materialstitching to retain said wool and material to each other, said layers ofretaining material and steel wool being wound into a roll, and means toprevent said roll from unwinding, sai'd means consisting of stitching,said stitching being spaced at intervals throughout the roll andsecuring the layers of one winding to the layers of another winding.

3. In a buffer, a roll comprising windings of a blanket formed of alayer of steel wool embraced by material adapted to Wear away, means forpermanently attaching said wool and-said material to each other, thewindings forming at the end of the roll working faces of spirallyarranged layers of steel wool and material, the outer windings beingsolely of the material, and means to join adjacent windings ofthe rollto each other.

4. In comblnation, a buffer consisting of a layer of steel wool, a layerof retaining material, stitching to retain said wool and material t0each other, said layers of retaining material and steel wool being woundinto a roll, and stitching to prevent said roll from unwinding, saidlatter stitching being spaced at intervals throughout the roll andsecuring the layers of one winding to the layers of another winding, ofmeans to supportand actuate said buffer, means on said supportto engagesaid buffer at one end, and means to adjustably nount said engagingmeans on said supporting means.

5. In combination, a buffer consisting of a roll comprising windings ofa blanket formed of a layer of steel wool embraced by material adaptedto wear away, means for permanently attaching said wool and saidmaterial to each other, the windings formthe material, and means to joinadjacent windings of the roll to each other, of a portions of the buffermay be advanced be- 2" yond the supporting shaft.

In testimony whereof, I aflix my signature.

VILLIAM H. ROBBINS.

